Professional tool for commercial or occasional use. TCT blades are fully hardened and tempered as they are tungsten carbide tipped. Suitable for hardwood, softwood, chipboards and other composite materials. Hardened and strengthened to ensure a long life. Versatile blades that can fit a multitude of circular saws with different drives. Varied number of teeth for use on multiple types of jobs. Set also includes 2 x ring adapters 22.2mm and 25.4mm . Specifications: 250mm x 30mm bore Maximum speed 3200 RPM 1 x 80 teeth fine cut blade 2 x reduction rings 22.2mm to 25.4mm